3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo =[ [ 'a', 'b' ], [ 'c', 'd' ] ]; foreach ($foo as [ $x, &$y ]) { /* .... */ } $y = 'e'; var_dump($foo);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.4.10.0090.00017.69
8.3.140.0050.00318.52
8.3.130.0150.00416.56
8.3.120.0110.00419.03
8.3.110.0100.01020.94
8.3.100.0040.00424.06
8.3.90.0070.01126.77
8.3.80.0030.00616.75
8.3.70.0060.00918.43
8.3.60.0150.00618.33
8.3.50.0120.00318.30
8.3.40.0130.00318.59
8.3.30.0090.00618.59
8.3.20.0060.00324.18
8.3.10.0060.00324.66
8.3.00.0000.00726.16
8.2.250.0100.00016.46
8.2.240.0050.00318.73
8.2.230.0030.00622.58
8.2.220.0040.00437.54
8.2.210.0000.01426.77
8.2.200.0030.00616.88
8.2.190.0090.00616.75
8.2.180.0070.01125.92
8.2.170.0150.00319.13
8.2.160.0080.00522.96
8.2.150.0060.00325.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00021.18
8.2.110.0090.00022.11
8.2.100.0080.00417.91
8.2.90.0080.00017.63
8.2.80.0040.00418.77
8.2.70.0000.00817.50
8.2.60.0060.00318.05
8.2.50.0040.00418.07
8.2.40.0000.00818.28
8.2.30.0040.00418.09
8.2.20.0000.00818.16
8.2.10.0020.00519.21
8.2.00.0070.00319.36
8.1.300.0060.00317.86
8.1.290.0090.00018.88
8.1.280.0110.00325.92
8.1.270.0000.00723.99
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00620.27
8.1.230.0070.00417.89
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00617.25
8.1.190.0050.00317.23
8.1.180.0030.00619.31
8.1.170.0000.00818.43
8.1.160.0040.00418.88
8.1.150.0000.00718.59
8.1.140.0070.00018.89
8.1.130.0040.00417.36
8.1.120.0040.00417.50
8.1.110.0070.00017.38
8.1.100.0070.00017.46
8.1.90.0000.00817.45
8.1.80.0070.00317.46
8.1.70.0000.00717.41
8.1.60.0050.00517.63
8.1.50.0060.00317.54
8.1.40.0030.00717.41
8.1.30.0030.00517.64
8.1.20.0050.00317.46
8.1.10.0050.00317.65
8.1.00.0050.00317.34
8.0.300.0080.00018.77
8.0.290.0040.00416.75
8.0.280.0030.00318.32
8.0.270.0030.00318.00
8.0.260.0030.00316.71
8.0.250.0030.00316.92
8.0.240.0040.00416.97
8.0.230.0000.00716.85
8.0.220.0030.00316.79
8.0.210.0040.00416.92
8.0.200.0070.00016.93
8.0.190.0000.00716.95
8.0.180.0020.00516.90
8.0.170.0000.00816.78
8.0.160.0080.00416.87
8.0.150.0040.00416.73
8.0.140.0000.00716.80
8.0.130.0000.00613.36
8.0.120.0080.00016.84
8.0.110.0040.00416.89
8.0.100.0040.00416.76
8.0.90.0040.00416.76
8.0.80.0000.00716.86
8.0.70.0000.00716.73
8.0.60.0050.00216.77
8.0.50.0000.00716.92
8.0.30.0000.00816.91
8.0.20.0040.00416.89
8.0.10.0000.00717.01
8.0.00.0000.00716.87
7.4.330.0040.00015.55
7.4.320.0000.00616.45
7.4.300.0030.00316.56
7.4.290.0080.00016.45
7.4.280.0000.00716.52
7.4.270.0030.00316.49
7.4.260.0050.00313.23
7.4.250.0000.00716.46
7.4.240.0070.00016.42
7.4.230.0000.00716.59
7.4.220.0070.00016.61
7.4.210.0030.00316.56
7.4.200.0030.00316.57
7.4.190.0000.00716.67
7.4.180.0070.00016.54
7.4.160.0070.00016.68
7.4.150.0000.00716.61
7.4.140.0000.00716.36
7.4.130.0030.00316.54
7.4.120.0030.00316.25
7.4.110.0070.00016.34
7.4.100.0040.00416.66
7.4.90.0030.00516.46
7.4.80.0040.00416.48
7.4.70.0040.00416.19
7.4.60.0040.00416.36
7.4.50.0000.00716.42
7.4.40.0070.00016.46
7.4.30.0030.00316.41
7.4.20.0000.00616.56
7.4.10.0000.00716.43
7.4.00.0070.00016.34
7.3.330.0070.00016.32
7.3.320.0000.00613.07
7.3.310.0070.00016.34
7.3.300.0070.00016.35
7.3.290.0060.00016.31
7.3.280.0060.00016.34
7.3.270.0030.00316.36
7.3.260.0000.00616.34
7.3.250.0000.00616.28
7.3.240.0030.00316.34
7.3.230.0040.00416.31
7.3.220.0070.00016.06
7.3.210.0070.00016.28
7.3.200.0000.00616.27
7.3.190.0000.00716.28
7.3.180.0000.00716.23
7.3.170.0030.00316.16
7.3.160.0030.00316.09
7.3.150.0030.00316.18
7.3.140.0000.00616.24
7.3.130.0000.00716.09
7.3.120.0000.00616.25
7.3.110.0050.00216.09
7.3.100.0070.00016.18
7.3.90.0040.00416.46
7.3.80.0070.00016.10
7.3.70.0000.00616.33
7.3.60.0030.00316.41
7.3.50.0030.00316.45
7.3.40.0000.00616.29
7.3.30.0000.00616.37
7.3.20.0050.00316.47
7.3.10.0070.00016.27
7.3.00.0040.00416.37

preferences:
62.64 ms | 403 KiB | 5 Q